What is the name and purpose of this valve/line running to the pea-trap?

What about it?

I was installing a water filter under my kitchen sink today when I noticed this line I’m unfamiliar with. Can anyone tell me it’s name and purpose?

Does this Constitute a Double P-Trap?

What about it?

Can we remove the one closest to the wall?

Just noticed this 5 minutes ago, what do I do?

What about it?

I have to go to work so I have to leave it. I shut off the water emptied the tank and shop vacuumed the bowl. But it’s all I have time for! What’s the next step? (Toilet is 15 years old. 2nd floor)

Help a layman understand plumbing/moisture issues

What about it?

I’m about to move into a new place and a bit concerned about moisture issues. It’s a 4 unit row house with all the bathrooms along the back wall. For a long time the previous tenant had complained that after her bath that the floor in the adjacent room would get moisture on the wood laminate floor. This is the room on the other side of the wall from the foot of the bathtub. Also, it is an old style home perhaps from the 50s that has an ironing board built into the wall in that same bedroom. Pulling down the ironing board revealed that the ironing board had some mold on it. Also, it seems that the neighboring units have also experienced moisture mostly along that back wall, but also even in the closets of that same back room. Prior to me moving in, the landlord finally went to address the issue and found that the drain from the bathtub had a crack, and had been leaking into the concrete foundation for who knows how long but at least two years. Also should be noted that many small roots were found in the pipes at that location. To properly address the problem, the entire bathtub and shower had to be ripped out which revealed much moisture, some mold, and damage to the wood in the walls. See attached photo. Currently, the landlord is assuring me that once he fixes this issue at the drain, there will be no more moisture problems. But I must admit, I am skeptical. I’m not sure if this is enough information for anyone to go on, but I’m just wondering if I’m stepping into a nightmare. I’m not sure I need to be a plumber to know that roots are a major issue and my fear is that the roots problem is spread across many different places underneath all the units, causing cracks and leaks into the concrete foundation. Is this a likely scenario? Am I over reacting? Is there a much larger problem that the landlord is aware of but just doesn’t want to fix? I’d appreciate any input, thoughts, experience with issues like this. I am just a civilian and don’t really understand if that main drain pipe is embedded in concrete or not or what’s actually going on under there. Thank you so much to anyone who might be able to help. Thanks!

How to remove this?

What about it?

Hey guys, It might sound like a easy thing...but ive no experience with plumbing... So this is my kitchen's faucet and i wsnt to remove it , or to tighten it a bit cause it has started to come loose. Ive tried WD40 today , but did not help...(i was trying to unscrew it with the same tool that came with the box, (an hexagonal 20cm-sh tube that helps to screw up the bolt) Any suggestions would be welcomed. Thanks again for looking into this Cheers V.

What could this be?

What about it?

This keeps happening to my tub,sinks and toilet. It usually worse when it rains what could this mean?

Enjoying my new drain and 2” stand pipe for DW

What about it?

New kitchen sink cabinet and sink. Upsized form 1.5” drain pipe to 2”. AAV is up behind the sink and not visible. Pipe to the far right is stand pipe for DW. Thought you all might enjoy to appreciate or tear apart.

Why?

What about it?

The past few months I’ve been noticing this stupid tab on new disposals. It keeps the ring from turning and infuriates me to no end. I just sawzall it off. Is there a purpose for the tab?

Installing a new shower

What about it?

I'm installing a new shower in my basement and I want to make sure I'm not making any mistakes. I bought green mold resistant gypsum and I was ready to glue my vinyl walls of my maax shower on them. What would be my next step if I want to do it right? Paint a waterproof membrane on my gypsum? I just want to do what's best!

AAV placement

What about it?

The AAV is in the top right of this picture. From what I can find on Google, should it be directly above the drain pipe, after the p-trap? I’ve got a clog and wondering if this has something to do with it.

Shower floor

What about it?

So I was thinking I'd like to use these pebbles for the floor of my shower, but I fear the upkeep would be a major obstacle. What would I have to do to keep this from building mold and bacteria? How often would I have to take them out to fully clean & dry them? If there is a better sub for this question I'll be glad to be redirected!